I want to save csv records to external flash memory with dc2420a kit, can you help with this?
What information did you want to save? The LTC2984 demo software allows you to save (and load) configuration data into it's EEPROM. This is discussed under Using the EEPROM section of the Demo software manual that can be found on the LTC2984 product page.
Not the configuration data. I want to save the measurement results (output values) with the external flash memory module as in the attached sample file. In short, I want to make a temperature recorder with the dc2420a kit. Can you help with this (example code connection scheme etc)?